• Latest
  • Trending
  • All
  • Capacitors
  • Resistors
  • Inductors
  • Filters
  • Fuses
  • Non-linear Passives
  • Applications
  • Integrated Passives
  • Oscillators
  • Passive Sensors
  • New Technologies
  • Aerospace & Defence
  • Automotive
  • Industrial
  • Market & Supply Chain
  • Medical
  • RF & Microwave
  • Telecommunication

Improving Low Loss Dielectric Measurement Technique Using Vector Network Analyser

15.6.2022

Examining the Influence of ESR and Ripple Current on Selecting the Suitable Capacitor

21.3.2023

SABIC Validates its 150°C Film Foil to Enable Adoption of Film Capacitors in SIC Power Modules

20.3.2023

Outlook of Passive Electronic Components Market for Oil & Gas Electronics in 2023

20.3.2023

Flying Capacitors Explained

17.3.2023

TDK Introduces Compact High-Current Chokes for Automotive and Industrial Applications

16.3.2023

ECIA NA February 2023 Electronic Components Sales Confirms Growth Trend

16.3.2023
  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About
No Result
View All Result
NEWSLETTER
Passive Components Blog
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication

    Examining the Influence of ESR and Ripple Current on Selecting the Suitable Capacitor

    SABIC Validates its 150°C Film Foil to Enable Adoption of Film Capacitors in SIC Power Modules

    Outlook of Passive Electronic Components Market for Oil & Gas Electronics in 2023

    Flying Capacitors Explained

    TDK Introduces Compact High-Current Chokes for Automotive and Industrial Applications

    ECIA NA February 2023 Electronic Components Sales Confirms Growth Trend

    Investigating Modeling Techniques of Class II Ceramic Capacitors Losses for High Voltage and Current Applications

    TDK Extends Range of Industrial Single Pair Ethernet (SPE) Inductors

    Premo Unveils New series of 11kW 3-Phase On-Board Charger Transformers

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Investigating Modeling Techniques of Class II Ceramic Capacitors Losses for High Voltage and Current Applications

    Understanding Basics of Current Sense Resistors

    What Decoupling Capacitor Value To Use And Where To Place Them

    How to Measure Rated Current on Power Inductors

    LTspice Simulation of a Spark-Gap Circuit Protection Surge Arrester

    Approximate Inductor Design Using Two Alternative Cores

    1kW Phase Shift Full Bridge Converter Design and Simulation

    Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

    Smart Power Distribution Unit Architecture and Inductor Losses

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication

    Examining the Influence of ESR and Ripple Current on Selecting the Suitable Capacitor

    SABIC Validates its 150°C Film Foil to Enable Adoption of Film Capacitors in SIC Power Modules

    Outlook of Passive Electronic Components Market for Oil & Gas Electronics in 2023

    Flying Capacitors Explained

    TDK Introduces Compact High-Current Chokes for Automotive and Industrial Applications

    ECIA NA February 2023 Electronic Components Sales Confirms Growth Trend

    Investigating Modeling Techniques of Class II Ceramic Capacitors Losses for High Voltage and Current Applications

    TDK Extends Range of Industrial Single Pair Ethernet (SPE) Inductors

    Premo Unveils New series of 11kW 3-Phase On-Board Charger Transformers

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Investigating Modeling Techniques of Class II Ceramic Capacitors Losses for High Voltage and Current Applications

    Understanding Basics of Current Sense Resistors

    What Decoupling Capacitor Value To Use And Where To Place Them

    How to Measure Rated Current on Power Inductors

    LTspice Simulation of a Spark-Gap Circuit Protection Surge Arrester

    Approximate Inductor Design Using Two Alternative Cores

    1kW Phase Shift Full Bridge Converter Design and Simulation

    Multiphase Buck Trans-Inductor Voltage Regulator (TLVR) Explained

    Smart Power Distribution Unit Architecture and Inductor Losses

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Improving Low Loss Dielectric Measurement Technique Using Vector Network Analyser

15.6.2022
Reading Time: 2 mins read
0 0
0
SHARES
59
VIEWS

Scientists from NPL have developed improvements to a technique for measuring dielectric permittivity and loss of materials at MHz frequencies. The method used is named after two NPL scientists who developed in the 1930, Hartshorn and Ward. The findings are presented in the team’s “Low loss dielectric measurements in the frequency range 1 – 70MHz by using a Vector Network Analyser” paper, recently published in Measurement Science and Technology. This method allows the permittivity and loss of a sheet of dielectric material placed between the plates of a capacitor to be determined by resonating it with a coil inductor. The value of the technique is that very low losses can be determined from measurement of small changes in Q-factor.

Historically, the Hartshorn and Ward method was used to characterise polyethylene used in undersea cable systems before the invention of fibreoptic cables. It was established that UK-made polyethylene had similar loss to imported material, with considerable benefit to the UK economy. There are still requirements for measurement of the loss of low-loss polymers used in the electronics industry. Another application is for measurement of the loss of windows that are used in high-power radiofrequency systems. These include ceramic windows used in the Joint European Torus (JET) fusion reactor to allow input of RF power to create plasmas by Ion Cyclotron Resonance Heating (ICRH). The measurements of loss are needed to demonstrate that the windows have sufficient resilience to avoid failure from overheating.

RelatedPosts

Rohde & Schwarz Introduces New Family of High Performance LCR Meters

2-Port Shunt-Through Impedance Power Integrity Measurement

Inductor Current Measurement in Switched Power Supplies

The newly-published work describes how a Hartshorn and Ward system manufactured by ERA Technology in the 1970s was adapted to use a Vector Network Analyser instead of an analogue Q-meter. It also describes how uncertainties were improved by using numerical modelling techniques to correct measurements for the effect of fringing fields around the edge of electrodes. A comprehensive measurement comparison that includes evaluations of uncertainty is included in the paper. Loss tangents smaller than 10-5 can be resolved.

Andrew Gregory, Senior Research Scientist, NPL states: “The measurement of very low dielectric loss presents unique challenges because dissipation occurring in specimens must be distinguished from other sources of dissipation in the experiment. A Hartshorn and Ward experiment was been brought into the digital age, making it more convenient to use and enabling measurement uncertainty to be reduced. I was fortunate to receive help from two guest workers, G J Hill and M A Barnett, with many years’ experience of low-loss measurement. This work has led to a comprehensive metrology paper, and an updated instrument that is now one of the facilities that we have as part of the National Measurement System.”

Source: NPL UK

Related Posts

Capacitors

Examining the Influence of ESR and Ripple Current on Selecting the Suitable Capacitor

21.3.2023
40
Capacitors

SABIC Validates its 150°C Film Foil to Enable Adoption of Film Capacitors in SIC Power Modules

20.3.2023
14
Market & Supply Chain

Outlook of Passive Electronic Components Market for Oil & Gas Electronics in 2023

20.3.2023
14

Upcoming Events

Mar 19
March 19 - March 23

APEC 2023

Mar 22
14:00 - 15:00 CET

Parasitic Components in Power Converters – Fundamentals and Measurements Rohde & Schwarz Webinar

Apr 3
April 3 @ 12:00 - April 4 @ 14:00 CEST

Microelectronic Packaging Failure Modes and Analysis

View Calendar

Popular Posts

  • What is a Dielectric Constant of Plastic Materials ?

    4 shares
    Share 4 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • Capacitor Selection for Coupling and Decoupling Applications

    28 shares
    Share 28 Tweet 0
  • Understanding High-Precision Resistor Temperature Coefficient of Resistance

    0 shares
    Share 0 Tweet 0
  • Leakage Current Characteristics of Capacitors

    0 shares
    Share 0 Tweet 0
  • How to Choose the Right Inductor for DC-DC Buck Applications

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    0 shares
    Share 0 Tweet 0
  • MLCC and Ceramic Capacitors

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

PCNS Call for Papers !

Archive

2022
2021
2020
2019
2018
2017

Symposium

Passive Components Networking Symposium

Passives e-Learning

Knowledge Blog

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

© EPCI - Premium Passive Components Educational and Information Site

No Result
View All Result
  • Home
  • News
  • Video
  • Knowledge Blog
  • Preferred Suppliers
  • Events

© EPCI - Premium Passive Components Educational and Information Site

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.